What's the Matter?
This is something that has mass and takes up space.
Matter
The horizontal rows in the periodic table are called?
Periods
A phase change that happens when a solid turns into a liquid.
Melting
A bond that is characterized by donating and accepting electrons.
Ionic Bond
This law states that at the end of the reaction there should be the same amount of stuff at the end.
Law of conservation of mass
The part of an atom that has a negative charge.
Electron
The atomic number tells you what about an atom?
Number of proton and electrons
A foggy bathroom mirror is a result of this phase change.
A covalent bond is usually formed between what kinds of elements?
Non-metals
At the end of a chemical reactions the molecules that are created are called.
A state of matter that is characterized by particles having no fixed shape or volume.
Gas
How do you determine the number of neutrons an atom has?
Atomic mass - atomic number
Describe the relationship between temperature and volume in a gas.
When the temp increases the volume increases.
These types of metals are stronger and less reactive than pure metals.
Alloys
This type of chemical reaction usually releases energy in the form of heat or light.
Exothermic reaction
A type mixture that is so evenly mixed that you cannot see the different parts.
Homogenous mixture
The group number that an element is in tells you what about an element?
Number of valence electrons
Dry ice is a solid, and when it interacts with oxygen it turns into a gas, this is an example of what kind of phase change?
Name a property of a metal.
luster, ductile, malleable, thermal, and electrical conductors
Provide one piece of evidence that a chemical reaction has occured.
gas production, color change, smell, light, new substance is formed
Name a property of a liquid.
no fixed shape, fixed volume, viscosity, surface tension
Which elements are the most reactive in the periodic table?
Group 1, alkali metals
Boyle's Law states what?
When pressure increases, volume decreases.
Negatively charged atoms are called...
anions
Describe a physical property of matter.
characteristic of a substance that can be observed without changing it.